The last one that I watched that really had my attention and that I found amazing was Whiplash. I watched it originally just for the noise, a filler while I do something else because I didn't think that it would be my cup of tea. I know nothing about drumming and wasn't really interested in a music movie. However, I watched it twice now and both times it was gripping, its low action, high emotion. And refreshingly it wasn't a sappy tear jerker. It pulls you in, it infuriates you, leaves you exasperated, it raises your hopes and it brings them crashing down with a thud.
Miles Teller and J.K. Simmons do an excellent job, in my opinion, and you can't help but feel what the main character Andrew (Miles Teller) feels.
I would recommend it, regardless of your age or whether you have any interest or knowledge about music or jazz drumming in particular.